Vehicle-spring.



PATENTED AUG. 7, 1906.

R. B. HARDESTY.

VEHICLE SPRING.

APPLICATION FILED JAN. 2, 1906.

2 SHEETS-SHEET 1.

PATENTED AUG. 7, 1906.

R, E. HARDESTY. VEHICLE SPRING.

APPLICATION FILED JAN. 2, 1906.

2 SHEETS-SHEET 2.

. infer-I i1; snip-ii no sea-206 w may cancer! 'ofvithe U-nit ed States,residing at Lou- ,co inty of Jefferson and State g of Kentucky, haveinvented certain new and useful;Improvements in Vehicle-Springs; and I'dohdteby declare the following to be a- 1 nd ex t description of theinven i y l, um i ion such 'as WlllGIlktblG- others skilled in theappertains tornake and use A, .This,invention' relates to improvementsin vehicle-springs, and is primarily designed to .ISO

provide: a s prin of increased flexure and at -member yieldinglyconnected with its respective end member intermediate of the lattersends.

The invention may be adapted for use with a spring of the elliptic orsemi-elli tic type and maybe equally as Well employe as a springextending longitudinally or transversely of the vehicle-body or therunningear: g \Nhile the invention is not limited to the specificdisclosure, for the purpose of illustration reference is had to theaccompanying drawings, illustrating a practical embodiment of same, theparticular features of novelty being succinctly stated in the claims.

Referring to the drawings, Figure'l is a View in side elevation of aspring of the elliptic type embodying the invention. Fig. 2 is a detailview, in transverse section, on the line 2 2 of Fig. 1. Fig. 3 is a viewin end elevation of a modified construction, the position of thesectional members being reversed I relatively to each and the springbeing shown as of'the semi-elliptic type; and Fig. 4 is a top plan viewof the spring shown in Fig. 3, the hanger-bar being omitted.

The spring members are preferably of the customary laminated form, 1desi natin the central member, 2 and 3 the en mem ers,

and 4, Fig. 1, the axle of a vehicles runningear.

In Fig. 1 the lower section of the spring is or area f p y Y cured tothe axle in any ;th at l", ROY E. HAR'oEsrY, a

PATENT err nee. uirilu-es.

suitable wayfor instance, as shown, wherein the central member 1 issecured to the axle 4 by strap or clamping means 5. The upper sectionmay similarly be secured to the vehicle-body; 6

designates a plate, shown in Fig. 1 as being riveted or bolted to thecentral member 1 and provided with ears or lugs 7, projecting outwardlybeyond the outer periphery of the central spring member, it being notedthat in this construction the outer periphery of the central member -1is disposed adjacent the inner periphery of the main spring members 2and 3, but spaced therefrom. The ears or lugs 7 are apertured, and theinner ends of the main spring members are respectively pivoted thereto,as indicated at 8. 9 designates forked members, the transverse end ofeach one of which is secured, as by rivets or bolts, to the ends of thecentral spring memher 1, the forked arms having a roller 10 journaledtherebetween and adapted to movably engage the outer periphery of itsrespective main spring member intermediate of the ends of the latter.

In the construction illustrated in Fig. 3 the arrangement is slightlydifferent, inasmuch as the ears 7 on the plate 6 are disposed inwardlyof the inner periphery of the central member 1 the inner periphery ofthe member 1 in this instance lying adjacent to, but spaced from, theouter periphery of the main members 2 3. The inner ends of the mainmembers are pivoted, as at 8, to their respective ears or lugs 7, andthe outer ends of the main members are secured to the body of thevehicle in any suitable way, (indicated by the hanger-bar 11.) Theroller or its equivalent, the cross-pin 10*, of the forked member 9 isinterposed between the crosspiece and the ends of the forked arms, theends of the forked arms extending as guides at each edge face of themain members and the pins 10* movably en aging the outer periphery ofthe main mem ers.

' The operation and advantages of the improvement are obvious from theforegoin a leverage connection being maintained etween the sections ofthe spring, increasing What I claim is 1. In an elliptic vehicle-spring,the combination of semi-elliptic sections, each section comprising apair of main spring members, an interposed longitudinally-disposedcentral spring member slidingly connected at its ends to said mainmembers to form sliding fulcrums therefor, and means pivotallyconnecting the inner ends of said members to said central memberintermediate of the latters ends said members forming a substantiallycontinuous three-part spring, substantially as described.

2. The combination in a Vehicle-spring, of

.a pair of main spring members, an interposed central spring membermovably connected at its ends to said main members intermediate of thelatters ends said members forming a substantially continuous three-partspring, a pair of ears secured to said central member extending beyondthe outer eriphery thereof, and pivotal connections between the innerends of said main members and said ears, substantially as described.

3. The combination in a vehiclespring, of a pair of main spring members,an interposed central spring member, meansfor pivotally securing theinner ends of said main members to said central member intermediate ofthe lattersends, and rollers carried by the ends of said central memberand en aging said main members to form revolub e fulcrums for said mainmembers. substantially as described.

4. In an elliptic Vehicle-spring, the combination of semi-ellipticsections, each section comprising a pair of main spring members, aninterposed central spring member so connected at its ends to said mainmembers intermediate of the latters ends as to form a inovable fulcrumfor said main members, a pair of earssecured to said central memberextending beyond the outer periphery thereof, and pivotal connectionsbetween the inner ends of said main members andsaid ears, substantiallyas described.

In testimony whereof I affix my signature in presence of two Witnesses.

ROY E. HARDESTY. Witnesses:

B. K. MARSHALL, V L. BRADLEY.

